<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>借书</title>
</head>
<style>
#form{
position:absolute;
top:30%;
left:30%;
}
#alert{
position:absolute;
top:60%;
left:40%;
}
</style>
<body>
<div id="form">
请输入借阅卡号:<input type="text" id="card_num" placeholder="借阅卡号" required /><br>
请输入书的编号:<input type="text" id="ID" placeholder="书的编号" required /><br>
<button onClick="borrow()">借阅</button>
</div>
<div id="alert">
</div>
<script>
		
</script>
</body>
</html>